'\" te
.\" Copyright (c) 2008, Sun Microsystems, Inc. All Rights Reserved.
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.TH SMF_BOOTSTRAP 7 "Sep 25, 2008"
.SH NAME
smf_bootstrap \- service management facility boot, packaging, and compatibility
behavior
.SH DESCRIPTION
.sp
.LP
The service management facility establishes conventions for delivering service
manifests, incorporating service manifest changes, describing service
configuration stability, using service configuration overrides, and the use of
service profiles.
.SS "Manifest Loading at Boot"
.sp
.LP
The \fBsvc:/system/manifest-import:default\fR service uses \fBsvccfg\fR(8) to
import certain manifest files from the \fB/var/svc/manifest\fR directory tree
into the service configuration repository. The service imports files that it
has not imported previously and those files which have changed since the last
time they were imported by the service. When a manifest is imported by the
service, a hash of the file that includes its contents is recorded in a
property group of the \fBsvc:/smf/manifest\fR service. The
\fBmanifest-import\fR service uses the hash to determine whether the file has
changed. See \fBsvccfg\fR(8) for information on the \fBsvccfg import\fR
behavior for services that already exist in the repository.
.SS "Manifest Handling During Packaging Operations"
.sp
.LP
Service manifests within packages should be identified with the class
\fBmanifest\fR. Class action scripts that install and remove service manifests
are included in the packaging subsystem. When \fBpkgadd\fR(8) is invoked, the
service manifest is imported.
.sp
.LP
When \fBpkgrm\fR(8) is invoked, instances in the manifest that are disabled
are deleted. Instances in the manifest that are online or degraded are disabled
first and then deleted. Any services in the manifest with no remaining
instances are also deleted.
.sp
.LP
If the \fB-R\fR option is supplied to \fBpkgadd\fR(8) or \fBpkgrm\fR(8), the
actions described in this section will be done when the system is next rebooted
with that alternate root path.
.SS "Stability Declarations"
.sp
.LP
Each service group and each property group delivered in a manifest should
declare a stability level based on \fBattributes\fR(7) definitions. With
knowledge of the stability level, an application developer can determine the
likelihood that feature development based on the existence or components of a
service or object is likely to remain functional across a release boundary.
.sp
.LP
In an \fBsmf\fR(7) context, the stability value also identifies the expected
scope of the changes to properties within the property group across a release
boundary for the service, which can include patches for that service. The
following two sections discuss this in more detail.
.SS "Property Overrides"
.sp
.LP
The \fBservice_bundle\fR(5) document type definition includes an override
attribute that is applicable to each property in a service manifest. If set to
\fBtrue\fR, the attribute instructs \fBsvccfg\fR(8) and other manifest import
tools to replace the current value of a property in the repository with the one
from the manifest. If the override attribute is absent or present but set to
\fBfalse\fR, the current value in the repository is preserved.
.sp
.LP
Property groups declared as Stable do not contain override attributes on
enclosed properties. Property groups declared as Evolving do so only to correct
an erroneous setting. Property groups declared as Unstable can contain
overrides on any property. The exception to this behavior is for the stability
property itself, which can be modified to identify incipient change to the
interface presented by the service.
.SS "Property Group Deletion"
.sp
.LP
The \fBservice_bundle\fR(5) document type definition includes a delete
attribute, applicable to each property group in a service manifest. If set to
\fBtrue\fR, the delete attribute instructs \fBsvccfg\fR(8) and other manifest
import tools to delete this property group from the repository. If the delete
attribute is absent or present but set to \fBfalse\fR, the property group in
the repository is preserved.
.sp
.LP
Property groups declared as Stable or Evolving are not deleted. Property groups
declared as Unstable can be deleted across any release boundary.
.SS "Profile Application"
.sp
.LP
The first time the existence of each of the three service profiles listed below
is detected, \fBsvc.startd\fR(8) automatically applies the profile.
.sp
.in +2
.nf
/var/svc/profile/generic.xml
/var/svc/profile/platform.xml
/var/svc/profile/site.xml
.fi
.in -2

.sp
.LP
The \fBsvc:/smf/manifest\fR service is used in a similar fashion.
.sp
.LP
Additional service profiles that characterize the activation of various groups
of service instances might be present in \fB/var/svc/profile\fR. None of the
\fB/var/svc/profile\fR profiles are automatically applied to the repository. A
profile can be manually applied or re-applied using \fBsvccfg\fR(8).
.SH SEE ALSO
.sp
.LP
.BR libscf (3LIB),
.BR service_bundle (5),
.BR attributes (7),
.BR smf (7),
.BR smf_security (7),
.BR pkgadd (8),
.BR pkgrm (8),
.BR svc.startd (8),
.BR svcadm (8),
.BR svccfg (8)
.SH NOTES
.sp
.LP
The present version of \fBsmf\fR(7) does not support multiple repositories.
